Reversible and Irreversible Changes

Which is a property of matter that you CANNOT observe just by looking at an object?

• temperature
• shape
• color

Tags

NGSS.5-PS1-3

A student observes a clear substance in a container that has a flat, level surface.  The substance flows when poured, and is not magnetic.  The substance is most likely...

• sand
• water
• paper clips

Tags

NGSS.MS-PS1-2

Which thing in this picture represents a gas? 

• ice cubes
• bubbles 
• soda

Tags

NGSS.5-PS1-1

NGSS.5-PS1-3

Which of the following changes liquid water into gas?

• boiling
• freezing 
• melting

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of the following things will take the shape of the container it is in?

• ice cube
• melted chocolate
• baseball

Tags

NGSS.MS-PS1-4

When a stick of butter melts it changes from a...

• solid to gas
• gas to solid
• solid to liquid

Tags

NGSS.MS-PS1-4

Freezing

• Solid to gas
• Liquid to solid
• Gas to solid
• Liquid to gas

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is condensation?

• gas to solid
• gas to liquid
• liquid to solid 
• solid to liquid 

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-4

The speed of the molecules determines the _____.

• volume
• density
• pressure
• temperature

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A chemical change

• doesn't really change much.
• creates a new substance
• is a change in the state of matter

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5